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Is there a difference between an 8pin and a 6+2 pin connector?

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Go to solution Solved by WoodenMarker,

8pin refers to 6+2pin in this case.

 

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Posted

I am looking to upgrade my rx 480 to a gtx 1080 and my powersupply doesn't have 8 pin connectors, but i does have 6+2 pin connectors and I'm wondering if there's a difference between them.

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  • Solution

8pin refers to 6+2pin in this case.

 

Moved to Cases and Power Supplies.

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No difference when you use it as an 8pin.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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The namings are a bit weird..

 

Normally '8 pin' would refer to two 4 pin EPS connectors (used for power to your motherboard) and '6 pin' and '6+2 pin' would refer to PCIE connectors used by GPU's. Videocard manufacturers like to refer to 6+2 PCIE as '8 pin'.. Which is quite a shame, because it causes confusion like this..

 

Anyways, in this case the '8 pin' on the GTX 1080 means a 6+2 PCIE connector. So you're good.

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mini eLiXiVy: my open source 65% mechanical PCB, a build log, PCB anatomy and discussing open source licenses: https://linustechtips.com/topic/1366493-elixivy-a-65-mechanical-keyboard-build-log-pcb-anatomy-and-how-i-open-sourced-this-project/

 

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22 minutes ago, stefanDB said:

there is also a 4+4 pin connector, that one is different, but all PCIe power connectors are 6+2, you never see ones that are only 8 pins

 

17 minutes ago, Minibois said:

The namings are a bit weird..

 

Normally '8 pin' would refer to two 4 pin EPS connectors (used for power to your motherboard) and '6 pin' and '6+2 pin' would refer to PCIE connectors used by GPU's. Videocard manufacturers like to refer to 6+2 PCIE as '8 pin'.. Which is quite a shame, because it causes confusion like this..

 

Anyways, in this case the '8 pin' on the GTX 1080 means a 6+2 PCIE connector. So you're good.

m Not true in all cases. Modular psu like mine has 2 6pin and 2 8pin, but no 6+2. The 8pins arent separable.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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4 minutes ago, Jurrunio said:

 

m Not true in all cases. Modular psu like mine has 2 6pin and 2 8pin, but no 6+2. The 8pins arent separable.

ofcourse there will be exeptions, but that is very unusual

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Technically there is but it doesn't matter to most people.

Many PSUs now have cables that connect to PSU with 8pin and the other end is 2x 6+2 cables.

8 pin = 150w tdp.
6 pin = 75w tdp.

You can use both the 6 pins (and not the +2) if you are powering 2 GPUs that require 6 pin connectors without the slightest of problem.

1080 I believe takes a single 8pin which PSU should be fine with so to answer the obvious, 6+2 will be just fine with the 1080.

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